122100021107 has 2 divisors, whose sum is σ = 122100021108. Its totient is φ = 122100021106.

The previous prime is 122100021089. The next prime is 122100021139. The reversal of 122100021107 is 701120001221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122100021107 - 2²⁰ = 122098972531 is a prime.

It is not a weakly prime, because it can be changed into another prime (122100021187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050010553 + 61050010554.

It is an arithmetic number, because the mean of its divisors is an integer number (61050010554).

Almost surely, 2^122100021107 is an apocalyptic number.

122100021107 is a deficient number, since it is larger than the sum of its proper divisors (1).

122100021107 is an equidigital number, since it uses as much as digits as its factorization.

122100021107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 122100021107 its reverse (701120001221), we get a palindrome (823220022328).

The spelling of 122100021107 in words is "one hundred twenty-two billion, one hundred million, twenty-one thousand, one hundred seven".